PORTFOLIO INVESTMENTS AND FAIR VALUE - Aggregate Gross Unrealized Appreciation and Depreciation and Aggregate Cost and Fair Value of Portfolio Company Securities (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($) item	Dec. 31, 2022 USD ($) item
Investment Holdings 1 [Line Items]
Aggregate cost of portfolio company securities	$ 922,796,573	$ 875,823,177
Gross unrealized appreciation of portfolio company securities	34,656,786	28,927,746
Gross unrealized depreciation of portfolio company securities	(74,876,522)	(58,602,607)
Gross unrealized appreciation on foreign currency translations of portfolio company securities	9,166
Gross unrealized depreciation on foreign currency translations of portfolio company securities	(919,553)	(1,414,678)
Fair value of investments	$ 881,666,450	$ 844,733,638
Unfunded loan commitments
Investment Holdings 1 [Line Items]
Number Of Investments | item	55	52
Aggregate cost of portfolio company securities	$ 21,187,851	$ 27,824,917